Not an absolute expert on this one, but I do believe the PPM of the nutrients dictates what the PPM of the c02 should be. How many lamps are you running? What big is your area and what type of ventilation do you currently have? Unless you are running a minimum of 2000 watts, I personally would not even worry about c02 but others may disagree with that statement.
razzapiggy Reviewed by razzapiggy on . co2 question I am new to growing. I have been reading around this site and others. I know that plants need co2 to grow and thrive. I have seen people saing things about co2 enrichment I was wondering how people went about getting more co2 into there grow room.. From what I read it is good to have about 250 ppm co2 in the grow room being flushed out with fresh air every so often. Thats too much for me I don't have a big set up with vents just a closet with fan and ac for temp reg. what would be a good Rating: 5